Scientists have long feared that the rising temperature will forever free the coal seized in the devastated Arctic soil and will further accelerate climate change – but now the data indicate that an abrupt warming at the bottom of the lake is even more dangerous. is.
This is the main finding of a new article, published as part of NASA's 10-year Arctic Arctic survey.
"It would not take 200 or 300 years for the permafrost to release coal," said lead author Katey Walter Anthony, ecologist at Fairbanks University of Alaska, in a NASA study report. "In my life, in the lives of my children, this should become stronger." This is happening now, although not at a very high rate, but in a few decades it would have to peak. "
New research is based on measurements and interactions between climate change and permafrost interaction. In particular, scientists have studied the melting of eternal frost among water bodies – thermocortical lakes.
To calculate greenhouse gas emissions (CES) and to determine the age of coal, the team measured carbon emissions at 72 different locations in 11 thermocorose lakes in Siberia and Alaska, and in another five places without any further measures. They used this data to test their models.
The essence of the problem: the eternal freezing point of the earth melts, the bacteria in it become more intensive, they recycle the available organic material and produce carbon dioxide and methane, and both gases strengthen the greenhouse effect.
"We will not wait 200 or 300 years for the eternal prince to release coal"
But when this happens after thermocortical lakes, the process is even more unpleasant because surface water accelerates the melting of the soil. The freed gas, consisting of carbon monoxide from 2000-43000 years, quickly reaches the lake through the lake.
"Through the decades, melting ice can create very deep, vertical or melting pit depths of a few or several hundred meters," Walter Anthony said in a statement. – So, after these lakes there is a quick defeat of the eternal monarch. The difference in old greenhouse gases is easy to measure. "
Moreover, the team discovered that this sudden melting season would continue, even if people would reduce CHP emissions and slow down climate change. And as more eternal frost melts, the remaining frozen dissolves more quickly – which is not really good news.
The study is described in an article published in the Nature Communications Magazine.